Fireproof door.



PATENTED JAN. '7, 1908.

J. WHEELER.

FIREPROOF DOOR.

APPLICATION FILED Wk $5M inafter and harden the molded fiber.

able material.

JAMES A. WHEELER, OF NEW YORK, N. Y.

FIREPROOF DOOR.

Specification of Letters Patent.

Patented Jan. 7, 1908.

Application filed December 11I 1905, Serial No. 291.236. RenewedNovember 15, 1907- Serial No. 402.329-

T 0 all whom it may concern:

Be it known that I, J AMES A. WHEELER, a citizen of the United States,and resident of New York, in the county of New York, in the State of NewYork. have invented new and usefulImprovements in Fireproof Doors, ofwhich the following, taken in connection with the accompanying drawings,is a full, clear, and exact description.

This invention relates to the class of fireproof doors and shutterswhich are composed of asbestos treated with chemicals which solidify andharden the asbestos.

The object of this invention is to produce a fire-proof door which shallbe simple and inexpensive in construction, and thoroughly braced torender it strong and durable. And to that end the invention consists inthe novel construction and combination of the. component parts of thefire-proof door-heredescribed. In the accompanying drawings Figure 1 isa fragmentary front view of a-fire-proof door embodying my invention:Fig. 2 is a vertical transverseseetion on the line :r :r in Fig. 1: Fig.3 is a fragmentary side view of a plain faced shutter embodying myinventionr And Fig. 4 is a vertical transverse section on the line y'yinFig. 3..

-adesignates the body of the door or shutter, which body consists ofa'solidified board molded from asbestos treated in a plastic conditionwith suitable chemicals, such as silicate of soda. calcined magnesiteand suitable chlorids which serve to solidify To the edges of the saidbody I apply a. metallic band b-- which is of a width to ave its edgesflush with the faces of the door. Said band is permanently attached tostrengthen and protect the corners of the edges of the door.

In constructing a paneled door as shown. in Figs. 1 and .2 ol thedrawings, l form the stiles -c* aild rails -d separate from the body,and'prcferably. of wood and fasten them to the body (1 by ineaus. olbolts e-e passing transversely through said parts and countersunk attheir ends as shown in- Fig. 2 or by other suitable means. In eithercase the asbestos body mis stiffened by the said stiles and rails. Themolding f may be formed from any suit- On the said paneled door I employa metallic band b the central portion of'which is of a width to extendacross the edges of the body a stiles c and rails d. The marginalportions of said'band are folded inwardly upon the central portion ofthe band as shown at irand terminate in right angled flanges b -b whichembrace the margin of the body -a as illustrated in Fig. 2 of thedrawings.

g represents veneer of wood applied to the panel -aand to the stiles cand rails (Z- to improve the appearance of the door. A band of veneer gis also applied to the metallic band bto protect it from rust.

l/Vhat I claim as my invention is 1. A fire-proof door composed of aboard of solidified asbestos constituting the body ofthe door, a metalband applied to the edges of said door and having its edges flush withthe faces of the/door, and a non-metallic band covering the metal bandto protect it from rust as set forth.

2. The combination with a door-body and separately formed stiles andrails attached to said body, of a metallic band covering the edges ofthe door and formed with flanges inserted between the door-body andstiles and rails and fastened thereto.

3. The combination with a door-body, and separately formed stiles andrails attached to said body, of a metallic band covering the edges ofthe door and formed with flanges inserted between the door-body andstiles and rails, and bolts passing transversely through said parts andflanges of the metallic band as set forth and shown.

4. The combination with the door-body consisting of a board ofsolidified asbestos, and stiles and rails composed of wood and fastenedto said body. of a metallic band formed with a central portion extendingacross the edges of said door and having its marginal portions foldedinwardly upon the central portion and terminated in right angledflangesmnbracing the margin of the door-body asset forth and shown.

JAMES A. WHEELER.

Witnesses:

liEltBRRT J. LYALL, EMMA A. MAASS.

